La vie des Fruits. By R. Ulrich.

The genus ‘Euglena’. By Mary Gojdics.

Textbook of Practical Botany. By R. C. McLean and W. R. Ivimey-Cook.

A Text-Book of General Botany. 5th edition. By Gilbert M. Smith, Edward M. Gilbert, George S. Bryan, Richard I. Evans and John E. Stauffer.

The Physiology of Seeds. By W. Crocker and L. V. Barton.

Medical Mycology. By G. C. Ainsworth.

The Vegetation of British Guiana: a Preliminary Review. By D. B. Fanshawe.